<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .active{
            border: solid 5px yellow;
            width: 150px;
            height: 150px;
        }
        .error{
            background-color: orange;
        }
        .big{
            font-size: 20px;
        }
    </style>
</head>
<body>
    <div id="app">
        <div v-if="score>=90">优秀</div>
        <div v-else-if="score>=75">一般</div>
        <div v-else>差</div>

        <div v-show="sum>90">我是v-show</div>
    </div>

    <script src="/js/js/vue.js"></script>
    <script>

        var vm = new Vue({
            el: '#app',
            data: {
                score:75,
                sum:100
            },
            methods: {
            }
        })
    </script>
</body>
</html>
